478502240 has 24 divisors (see below), whose sum is σ = 1130461920. Its totient is φ = 191400832.

The previous prime is 478502231. The next prime is 478502273. The reversal of 478502240 is 42205874.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 478502197 and 478502206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1495160 + ... + 1495479.

It is an arithmetic number, because the mean of its divisors is an integer number (47102580).

Almost surely, 2^478502240 is an apocalyptic number.

478502240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

478502240 is an abundant number, since it is smaller than the sum of its proper divisors (651959680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478502240 is a wasteful number, since it uses less digits than its factorization.

478502240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2990654 (or 2990646 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 478502240 is about 21874.6940550034. The cubic root of 478502240 is about 782.1583002508.

The spelling of 478502240 in words is "four hundred seventy-eight million, five hundred two thousand, two hundred forty".